2x+38=180
2x=142 (or x+x=142 from which 2x=142)
x=71
The unknown angles are each 71
You know this answer is logical as, since two sides are 21 it hints that we are looking at an equilateral triangle, which means two of its angles will be the same
Remember them is the best way to go.
draw the exact value triangles if you're unsure, but importantly, you just need to memorise these exact values.
Division expression for fraction 5/4 for is 4 divided by 4 which is .8
Answer:
1994
Step-by-step explanation:
May I please ask,Where is the Mathematic problem that I may solve. ;)